Automotive air stack



FIG. 1 is a perspective view of the ornamental design for an air stack for automotive vehicles.

FIG. 2 is a side planar view of the ornamental design for an air stack for automotive vehicles.

FIG. 3 is a top perspective view of the ornamental design for an air stack for automotive vehicles.

FIG. 4 is a bottom planar view of the ornamental design for an air stack for automotive vehicles.

FIG. 5 is a front planar view of the ornamental design for an air stack for automotive vehicles; and,

FIG. 6 is a top planar view of the ornamental design for an air stack for automotive vehicles. 

The ornamental design for the automotive air stack, as shown and described. 